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Thread: Jeep jk 5.7 hemi nag1

  1. #1
    Potential Tuner
    Join Date
    Jan 2019
    Posts
    2

    Jeep jk 5.7 hemi nag1

    Hey guys, got my swap all done and working the bugs out. I?m using a 2012 challenger pcm and the factory nag1 tcm with a hemi file on it. In 4 low it will not shift out of 1st and will not manually either. I tried to search and find what I could change but nothing seems to look like it would change that feature. Anyone have any idea to help me? Thanks!

  2. #2
    Potential Tuner
    Join Date
    Jul 2018
    Posts
    2
    Did you ever find a fix for this? My 2014 with a hemi and the stock computer that was reprogrammed works similar. I can sometimes get it into second, but often it will just go into limp mode once back in high range.